You’ll remember in the last piece of this series we added some iSCSI LUNs to each of our hosts. To actually do something with them, we’ll need to format them with VMFS. This procedure is similar to the C# client, but it’s not where you’d expect it to be if you’re used to the C# client.
1. Right click a host, then click New Datastore.
2. Click Next.
3. Since we’re formatting an iSCSI LUN, choose VMFS and click Next.
4. Choose the LUN you want to format (1), fill in the name (2), then click Next.
5. Choose the version of VMFS you want to format the LUN. Choose VMFS5 unless you need to be able to support ESX/ESXi hosts prior to vSphere 5, then choose VMFS3. Click Next.
6. Unless you have a very good reason (hint: you don’t), do a 1:1 ratio of partitions to LUNs. Make sure Datastore Size equals the total space on the LUN, then click Next.
7. Speak now or forever (or until you decide to delete the datastore) hold your peace – Click Finish.
Unless you’ve disabled automatic rescan or the LUN isn’t available on all hosts, once the datastore has been created, all of the hosts in your cluster should rescan and pick up the new datastore.
Oh hey, look at that new maximum file size!